package com.baizhi.sync;

public class SyncDemo {
    public static void main(String[] args) {
        Table table = new Table();

        Thread t1 = new Thread(){
            @Override
            public void run() {
                while(true){
                    int bean = table.getBean();
                    Thread.yield();
                    System.out.println(getName() + ":" + bean);
                }
            }
        };

        Thread t2 = new Thread(){
            @Override
            public void run() {
                while(true){
                    int bean = table.getBean();
                    Thread.yield();
                    System.out.println(getName() + ":" + bean);
                }
            }
        };

        t1.start();
        t2.start();

    }
}


class Table{
    private int beans = 20;

    public synchronized int getBean(){
        if(beans == 0){
            throw new RuntimeException("没有豆子了");
        }

        Thread.yield(); //出让时间片
        return beans--;
    }
}
